US PATENT SUBCLASS 361 / 93.1
.~ With specific current responsive fault sensor

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

1  DF  SAFETY AND PROTECTION OF SYSTEMS AND DEVICES {32}
93.1.~ With specific current responsive fault sensor {11}
93.2  DF  .~.~> Digital control
93.3  DF  .~.~> Rating plug
93.4  DF  .~.~> Automatic reset after trip
93.5  DF  .~.~> Transformer and resistor sensors
93.6  DF  .~.~> Transformer sensor (i.e., toroidal current sensor)
93.7  DF  .~.~> Resistor sensor
93.8  DF  .~.~> Thermal sensing
93.9  DF  .~.~> Current limiting
94  DF  .~.~> With time delay protective means {4}
100  DF  .~.~> With semiconductor circuit interrupter (e.g., SCR, Triac, Tunnel Diode, etc.) {1}
102  DF  .~.~> With mechanical circuit breaker

DEFINITION

Classification: 361/93.1

With specific current responsive fault sensor:

(under subclass 1) Subject matter wherein the fault sensor responds to an abnormal current condition in an electrical system and to activate the protective means in response thereto.

(1) Note. This subclass relates to protection involving abnormal current conditions which are considered to be fault conditions and not otherwise.

(2) Note. Fault conditions are defined as those which could result in damage to the electrical system, if ignored. Abnormal current conditions include both overcurrents and undercurrents, unless indicated otherwise.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5, for current responsive control circuits in arc suppression circuits.

31, for current responsive control circuitry in motor protective circuits.

57, for current responsive control circuitry in load shunting circuits.

63+, for current responsive control circuitry in feeder distribution networks.

87, for current responsive control circuitry in quantity comparison circuits.

SEE OR SEARCH CLASS

323, Electricity: Power Supply or Regulation Systems,

277, for output level responsive to load current sensor.

324, Electricity: Measuring and Testing,

509, for ground fault sensing by detecting current leakage to ground, and subclass 522 for fault location determination by current or voltage measuring.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

18, for electromagnetically actuated switches responsive to predetermined or abnormal current condition.